Cathinone (β-ketoamphetamine) is a monoamine alkaloid found in the shrub Catha edulis (Khat). Closely related to ephedrine, cathine and other amphetamines, it is probably the main contributor to the stimulant effect of Catha edulis. Cathinone differs from many other amphetamines in that its structure is a ketone. Other amphetamines to share this structure include the antidepressant bupropion and the stimulant methcathinone, among others. Internationally, cathinone is a Schedule I drug under the Convention on Psychotropic Substances. Circa 1993, the DEA added cathinone to the Controlled Substances Act’s Schedule I in order to fulfill the requirements of international law. [Wikipedia]